Search: id:A005555
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%I A005555
%S A005555 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,20,21,22,24,25,28,29,30,31,
%T A005555 32,34,35,36,37,38,39,40,56,57,60,61,62,63,64,70,84,85,88,110,111,
%U A005555 112,120,156,157,159,160,166,182,184,231,232,280,399,400,520,760,1240
%N A005555 A finite sequence associated with the Lie algebra E_8.
%C A005555 The g.f. (5-6*z+2*z**2)/(z-1)**4 conjectured by S. Plouffe in his 1992 
               dissertation is wrong.
%D A005555 E. B. Dynkin, Semisimple subalgebras of semisimple Lie algebras, Am. 
               Math. Soc. Translations, Series 2, Vol. 6, 1957, pp. 111-244, esp. 
               p. 211.
%H A005555 S. Plouffe, <a href="http://www.lacim.uqam.ca/%7Eplouffe/articles/MasterThesis.pdf">
               Approximations de S\'{e}ries G\'{e}n\'{e}ratrices et Quelques Conjectures</
               a>, Dissertation, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 
               1992.
%H A005555 S. Plouffe, <a href="http://www.lacim.uqam.ca/%7Eplouffe/articles/FonctionsGeneratrices.pdf">
               1031 Generating Functions and Conjectures</a>, Universit\'{e} du 
               Qu\'{e}bec \`{a} Montr\'{e}al, 1992.
%Y A005555 Sequence in context: A078510 A017909 A124695 this_sequence A128829 A023770 
               A023797
%Y A005555 Adjacent sequences: A005552 A005553 A005554 this_sequence A005556 A005557 
               A005558
%K A005555 nonn,fini,full
%O A005555 0,2
%A A005555 N. J. A. Sloane (njas(AT)research.att.com).

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